Circular calender-cutter.



F. W. KREMER.

GIRGULAR GALENDER. CUTTER.

APPLICATION FILED MAY 21, 1912.

1,130,909. V Patented Mar. 9, 1915.

2 SHEETSSHEET 1.

Witnesses Inventor I I I Attorneys P. W. KREMER.

CIRCULAR GALENDEB. CUTTER.

APPLIUATION FILED MAY 21, 1912.

Patented Mar. 9, 1915.

2 SEEETSSHEET 2.

Attorneys mum w. xanmna, or cannsmnr, NEW JERSEY.

GIRCULAR GALEHDER CUTTER.

To all whom it may concern Be it known that l, FRANKLIN W. KREMER,

a citizen of the United States, residing at Carlstadt, in the county-ofBergen and State of New Jersey, have invented a new and useful CircularCalender-Cutter, of which the following is a specification.

One object of the present invention is to provide a lmife so supportedand construct ed that it may be employed for cutting a web upon aroller, without endangering the webthrough the tearing or draggingaction of'the knife.

further object of the invention is to provide means whereby the knifemay be supported yieldably, to cooperate with the Web which is upon theroll.

The invention aims to provide novel means whereby the knife may beadjusted longitudinally of the roll and transversely of the roll.

With the foregoing and other objects in View, whichwill appear as thedescription proceeds, the invention resides in the combinationandarrangement of parts and in the details of construction hereinafterdescribed and claimed, it bein understood that changes in the preciseembo iment of invention herein disclosed can be made within the scope ofwhat is claimed without departing from the spirit'of the invention.

In the drawings,-Figure 1 shows the invention in end elevation; Fig. 2is a vertical transverse section upon the line 2-2 of Fig. 1.; Fig. 3 isa side elevation of the knife-supporting structure; Fig. 4 is anelevation of the structure shown in Fig. 3, the viewpoint in Fig. 4being 90 remote from the view point in Fig.3; and Fig. 5 is a fragmentalelevation showing a modified detail of the invention.

In the accompanying drawings, the numeral 1 indicates a supporting framewhich may be of any form. In the present instance, the frame 1 isdisclosed as comprising spaced standards 2 in which calender rolls 3 and4 are adjustably supported. The batch 5, which is'ordinarily a rubbercom; pound, is placed against the calender rolls 50 3 and thereby isfashioned into a web 6 which may be wound upon a mandrel 7 supportedbyavshaft 8, the shaft 8 being ordi narily carried by the frame 1. As theweb 6 is wound upon the mandrel 7 a web 9 is introduced between theconvolutions of the web" 6, for thepurpose of preventing the PatentedMar. 9, 1915.

convolutions of the web .6' from adhering, the web 9 being. ordinariltextile material. The web 9 is carried in t e' form'of a roll, upon ashaft 10 which may be journaled for rotation upon a' frame 11. j

The invention further includes a knife support 12, ordinarily takingtheform of a shaft journaled in the frame 1. 'The shaft 12 is equippedwith a lever 14, cooperating with a frame-supported segment 15 havin aslot 16 adapted to receive a set screw 1 which is threaded into thelever 14. By means of the lever 14, the shaft 12 may be rotated, theshaft being held at any desired positlon by manipulating the screw 17 sothat the same binds against the segment 16; although any known means maybe employed for limitin the movement of the lever.

A plurallty ofknife carriers are mounted upon the knife support 12, formovement longltudinally of the rolls 3, the knife carriers beingconnected with the knife support in such a manner that when the knifesupport is rotated, the carriers will be rotated. Each carrierpreferably takes the form of a. collar 18 provided with a'groove 19receiving a spline 20 which-is fashionedmpon the knife support ori'shaft12. The collar 18 is equipped with projecting lugs 21 carrying a pivotelement 22 upon which is fulcrumeda .knife holder 23, preferably takingthe form of a bar. Each collar or lmife-carrier 18 is supplied with alug 24 through-which passes a pin 25 connected by means of a pivotelement 26 with one end of the knife holder 23. Upon the free end of thepin 25 may be mounted washers 27 between which is interposed acompression spring 28, the extremity of the pin 25 being threaded asshown at 29 to receive a nut 30, of any form, the nut bearing againstone of the washers 27. The collar or knife-carrier 18 is provided at oneside with a boss 31' into which is threaded a set screw 32, adapted toengage the shaft 12. By loosening the set screw 32, the collar 18 may beslid longitudinally of the shaft 12,

equipped with arms 38, spaced apart more widely than the arms 33, ashaft 39 being carried by the arms 38, a plurality of rotary knives 40being. supported upon the shaft 39, and washers "41 being interposedbetween the knives 40 and between the lmives and the arms 38. v Inpractical operation, the shaft or knife support 12 is rotated throughthe medium of the lever 14 until the knives 35 bear yieldingly againstthe web 6 as thesame traverses one of the calender rolls 3. The spring28 is thus put under tension, and the knife 35 is yieldingly heldagainst the web. Owing to the yielding support furnlshed by spring 28,and owing to the fact that the 1 knife 35 is mounted for rotation, theknife will sever the web without causing a tearing or stripping thereof,should an obstacle in the web be encountered b the knife. As will beunderstood, the kni e 35 may be held at any desired adjustment withrespect to the calender roll 3, through the medium of" the set screw 17.By loosening the set screws 32, the several knife-carriers 18 may bespaced at the required distances apart, the

spline mechanism 19--20 serving to hold the knife-carriers 18 tiontherewith.

It is desirable at times to sever the web 6 into strips .of but slightwidth, and to accomplish this result, the 'double knife con upon theshaft 12 for rotastruction shown in Fig. 5 may be employed. 7 Havingthus described the mventlon,

what is claimed is:-

1. In a device of the class described, a roll; means for supportingtheroll; a rotar knife; and means for a usting the kni e in a fixedstraight line longitudinally of the roll, and transversely of the roll.

2. In a device of the class described, a roll; means for supporting theroll; a rotary knife; means for adjusting the knife longi .3

tudinally of the roll; means for adjusting the knife transversel of theroll; and yieldable means, indepen ent of the last specified adjustingmeans, for limiting the movement of the knife transversely. of the axisof the roll. 1

3. In a device of the class described, a roll; means for supporting theroll; a lnnife support; and a rotary knife adjustable along the su thelength 0 the roll and cooperating with the roll; I v I 4. Ina deviceofthe class described, a roll; means for supporting the roll; a knifesupport rotatably mounted adjacent the roll; a rotary knife adjustablealong the sup ort only in the direction of the length of-the roll; andmeans for rotating the su pofit-to, move the knife transversely of t ero '5. In a deviceoftheclass; described, a roll; means for supportingthe roll; a knife the port onlyin the direction of 6. In a device of theclass described, a

roll; means for suppo'rting the roll; a. knife support mounted forrotation adjacent the roll; a knife carrier movable upon the support,longitudinally only of the roll; means a I forsecuring the knife carrierto the support; and means for rotatin the support! ad 7ust the carriertransverse y of the'rolli In a device ofjthe class described, a 7 roll;means forv supportingthe roll; a knife support mounted for rotationadjacent the 1 port longitudinally only of the rollflnterroll; a knifecarrier movable upon the'supengaging -elements upon the carrier and uponthe support for preventing relative ro-.

tatory movement I only between the carrier and the support; and meansfor rotating the support to adjust the carrier transversely of the roll.

8. In a device of the a roll; means for sup ortingthe roll; a knife asupport jo'urnaled or rotation adjacent the roll; a knife-carriermovableu on the knife support longitudinally only, 0 the roll; in-v.

terengagmg elements upon the knife carrier and upon the supportforpreventing 1618-;

tive rotatory movement only between; the

1100 carrier and the support; means independent of the interengagingelements for retaining the carrier upon the su port against movethesupport; and; means for rotating;the support to.:adjustmentlongitudinally o the position of the carrier transversely of n theroll.

9. In a device of the class described {a r011; means for sup orting theroll; a knife support located ad acent the roll; a -knife carriermovable upon the sup ort, longitu-- dinally of the roll; avknife ho .derivotally connected 'with the carrier; an i-spring means operativelyconnected with. the

holder and with the carrier to move; the.

holder transverselyof the axis-of the roll.

10. In a deviceof the classdescribediaz roll; means for sup orting theroll; a kmfe support ournaled or rotation adjacentthe.

roll; a fe carrier movable lon tudinally only of the su port;-a knife hoally connecte with? the carrier; sp

and the carrier for-moving. the holdertrm t der pivotmeans operativelyconnected with. the holder the carrier for preventing-s relativerotatory"- movement between the carrier sand the sup port; and meansfor'rotatrisngg the SIIPPQ .t0; f the I adjust the holder transve .isufiport ournaled for rotation adjacent the a knife carrier adjustableupon the support longitudinally only of the roll; interengaging elementsupon the carrier and upon the support for preventing relative rotatorymovement only between the carrier and the support; means independent ofthe interengaglng elements for maintaining the carrier against movementlongitudina the support; a knife holder pivoted to the carrier; springmeans operatlvely. connecting the holder and the carrier for moving thecarrier transversely of the axis of the roll; a knife mounted upon theholder; and means for rotating the support.

, 12. In a device of the class described, a roll; means for supportingthe roll; a knife support journaled for rotation adjacent fig-ale roll;a knife carrier adjustable longitu nally only of the support and heldupon the I support for rotation therewith; a knife supported by thecarrier; means for rotating the support to move the knife transverselyof the roll; andmeans for locking the support in successive positions. H

In testimony that I claim the foregoing as my own, I have hereto aflixedmy signature 1n the presence of two witnesses.

FRANKLIN W. KREMER. Witnesses:

J. A. Mmmm, FRANK DEWITT.

